Related Questions

The conduction of electricity, in semiconductors, takes place due to movement of
A Positive ions only
B Negative ions only
C Positive and negative ions
D Electrons and holes
In AC.S.R. Conductors, the insulation between aluminium and steel conductors is
A Insulin
B Bitumen
C Varnish
D No insulation is required
Which elements are malleable and good conductors of electricity?
A tin and silver
B iodine and silver
C tin and xenon
D iodine and xenon
Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity).
A Fireclay
B Carborundum
C Graphite
D Chromite
The electricity bill of a certain establishment is partially fixed and partially varies as the number of units of electricity consumed. Wen in a certain month 540 units are sonsumed. the bill is TK 1800. In another month 620 units are consumed are the bill is Tk 2040. Inayet another month if 500 units are consumed what would be the bill (in Tk) for that month?
A 1950
B 1560
C 1840
D 1680
The conductors have transport phenomena of electrons due to
A Electric field
B Magnetic field
C Electromagnetic field
D None of the above
Heat conduction in gases is due to
A Elastic impact of molecules
B Movement of electrons
C EM Waves
D Mixing of gases
The current due to electron flow in conduction band is the hole current in valence band.
A Equal to
B Less than
C Greater than
D Any of the above
In a semiconductor, current conduction is due to
A Only holes
B Only free electrons
C Holes and free electrons
D None of the above
A person travels I2 km due north, then 15 km due east after that I5km due west and then 18 km due south. How far B she from the starting point?
A 6km
B 10km
C 33km
D 60km

Next steps